Imkesorn, R., W. H. HLuangdansakul, S. Prommas, A. Chotedelok, and T. Luangwilai. “Comparison Respiratory Distress Syndrome (RDS) Rate in Late Pre-term Infants between Gestational Age 34 Weeks and 35-36 Weeks”. Thai Journal of Obstetrics and Gynaecology, vol. 23, no. 1, Mar. 2015, pp. 18-24, doi:10.14456/tjog.2015.3.